Line / Sentence / Paragraph Counter
Count words, sentences, paragraphs and lines in one view.
What you provide
How this calculation works
The text is analysed for words, sentence boundaries (terminal punctuation), paragraph breaks (blank lines) and total lines, all at once.
What the results mean
- Sentences
- Counted by terminal punctuation. Runs like "?!" or "..." count as one boundary.
- Paragraphs
- Blocks separated by a blank line.
- Words per sentence
- The average, which is the most useful single readability signal here. General audience writing sits around 15 to 20; consistently above 25 is where prose starts to feel heavy regardless of vocabulary.
- Lines against paragraphs
- A large gap between the two means the text is hard-wrapped rather than flowing — every visual line is a real line break, which will reflow badly anywhere else.
Common problems and fixes
- The sentence count is too high
- Abbreviations are the usual cause. "Dr.", "e.g.", "Inc." and decimal numbers all present a full stop followed by a space, which is what sentence detection looks for. The heuristic is accurate on normal prose and will over-count text dense with abbreviations — worth knowing before treating the figure as exact.
- Everything counts as one paragraph
- Paragraphs are detected from blank lines. Text using a single line break between paragraphs — common when copied out of a PDF or an email — has no blank lines at all, so the whole document reads as one block. The line count will confirm it: many lines, one paragraph.
- I want readability scores, not just counts
- The structural figures here are the inputs those scores are computed from. Flesch-Kincaid and similar formulas combine words per sentence with syllables per word, and the sentence-length average shown here is the half that most affects the result — and the half you can actually act on when editing.
Frequently asked questions
How are sentences counted?
By looking for terminal punctuation — full stops, question marks and exclamation marks — followed by a space or the end of the text. It is a heuristic, so abbreviations like "Dr." can occasionally be miscounted, but it is accurate for normal prose.
What is a good average sentence length?
For general audiences, roughly 15 to 20 words, with variety mattering more than the average itself — a run of identical-length sentences reads as monotonous whatever the number. Technical writing runs longer and can be fine; consistently above 25 words is where readers start losing the thread of a clause before it closes.
How does this differ from a plain word counter?
A word counter answers a limit question. This one describes the shape of the writing: sentence and paragraph boundaries, averages, and the relationship between lines and paragraphs. It is aimed at editing rather than at checking a document fits, which is why the averages are shown as prominently as the totals.
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